using System.Data;

using System.Linq;

using System.Windows;

using System.Collections.Generic;



namespace Microsoft.Research.DynamicDataDisplay.DataSources

{

	/// <summary>Data source that extracts sequence of points and their attributes from DataTable</summary>

	public class TableDataSource : EnumerableDataSource<DataRow>

	{

		public TableDataSource(DataTable table)

			: base(table.Rows)

		{

			// Subscribe to DataTable events

			table.TableNewRow += NewRowInsertedHandler;

			table.RowChanged += RowChangedHandler;

			table.RowDeleted += RowChangedHandler;

		}



		private void RowChangedHandler(object sender, DataRowChangeEventArgs e)

		{

			RaiseDataChanged();

		}



		private void NewRowInsertedHandler(object sender, DataTableNewRowEventArgs e)

		{

			// Raise DataChanged event. ChartPlotter should redraw graph.

			// This will be done automatically when rows are added to table.

			RaiseDataChanged();

		}

	}

}